dc Acrobat startup script?

Similar Questions

• ACROBAT STARTUP SCRIPT NOT WORK (with extendscript Tooklkit CS6)

  Hello

  I lived in programming, but beginning in the JS script in CS6.

  I developed some scripts in the Acrobat XI Pro console, now I wan't to install this global script that can be called by a menu.

  I'm working on Windows 7, with 64-bit:

  The path of the script is:

  C:\Program Files (x 86) \Adobe\Acrobat 11.0\Acrobat\Javascripts

  the script name is Confg.js

  The script is created with editor Extendscript Tooklkit CS6

  only contains this line:
  

  App.Alert ("Hey, since a script running in the world");

  I expect that an alert is poping up, when I opened Acrobat Pro XI with any PDF file:
  

  for a change

  app.addMenuItem ({cName: 'Test Menu', cParent: 'Help', cExec: "app.alert ('Menu Item Test'); '" "});

  does not work either

  After the opening of PDF Pro XI with an arbitry PDF, I get an error in the console:

  Acrobat Version mit integrierten EScript-Funktionen 11.0

  Acrobat SOAP 11.0

  SyntaxError: illegal character

  1:folder - Level: App:Config.js

  If I created the file with a text editor, things work perfectly, as expected.

  If I change this own file with Extendscript Tooklkit CS6 editor , even after the file is corrupted. This is Jean-Claude clumsy. Any solution, so I can work with Extendscript Tooklkit CS6 editor?

  
  

  
  

  Without seeing the file 'text' produced by Extendscript Toolkit in a hex editor, it is rather difficult to say. If there is a code of control buried in the text file.

  Acrobat supports all UI development because most of the scripts are quite small.

  Another problem may be that Extendccript does not add tags suitable scripts when editing Acrobat JS in Acrobat.

  Acrobat is not one of the programs listed, which is accompanied by Extendscript.

• Tiara startup script does not work when running file associated with

  Hello

  I have a startup script that works correctly with tiara itself, however when I open a file associated with tiara (tdms files) the startup script does not work.  Is it possible to ensure that the script runs without worrying?  Thanks for the help!

  Bala

  Hi Bala,

  Depending on your use case, I suggest you call the next VI, which comes with LabVIEW, after your purchase VI is the creation of the data file.  Just pass the data file path in the upper part of entry and your path to the VBScript file in less than entry.

  "C:\Program Files (x 86) \National Instruments\LabVIEW 2013\vi.lib\ExportToExcel\DIAdem report Assistant Start CSC.vi '.

  Brad Turpin

  Tiara Product Support Engineer

  National Instruments

• Windows XP running startup scripts displays the taskbar?

  Hi all

  I have a newly installed Server 2003 domain.

  I have also 2 machines that I have connected to the domain. One of them works very well (goes on the internet, readers of network etc.).

  The other is does not work. It connects to the domain, reboot, then I log into the admin account. After that I did a gpupdate, and then restart the system.

  The problem is, when the system starts up again, it seems to start to run startup scripts, then seems to automatically connect on a called user account $ media (Media is the name of the computer).

  It displays the windows desktop and begins to run explorer.exe, with this user account (MEDIA$), with the start of the Running of scripts loading screen and does not get more.

  (Both the Pc running Windows XP Professional SP3)

  Any fix for that?

  Hello

  Your Windows XP question is more complex than what is generally answered in the Microsoft Answers forums. It is better suited for the IT Pro TechNet public. Please post your question in the forum TechNet for assistance:

  http://TechNet.Microsoft.com/en-us/WindowsServer/bb512919

  Hope the helps of information.

• C 40 script / blocked in TSH startup scripts

  Hello

  I have a problem when setting up a startup script on my C40.

  I put the following code (as a test) in a tata.tsh file:

  #! / usr/bin/env tsh

  xcommand Message alert text: "Hello."

  Good bye

  I gave the value correct chmod:

  -rwxr-xr-x 1 root root 294 Apr 19 15:45 tata.tsh

  But when I run the script there is stuckin the TSH and that it does not execute the xcommand:

  [C40-Lyon:/user/scripts.d] $./tata.tsh

  Welcome to C40-Lyon

  TANDBERG Codec Release TC5.1.0.280662

  SW release date: 2012-02-14

  Ok

  Only way to exist is of type bye or Ctrl + Z

  Anyone experienced the same problem?

  I have double Scheck EOL are Unix those and filetransfer set to text file.

  Thanks a lot for your help!

  PS: I use TC5.1.0.280662

  added to the version running on the C40

  Hello

  If you have already created your script file in the Directory user/scripts.d, and for example the name of the file is tata.tsh

  Then, login as root and try this:

  [C40-Lyon:/user/scripts.d] $ tsh

• Without root access startup script?

  In 2015 the API documentation tells you how to use startup scripts, but this requires root account access. The root account has been dismantled in the builds of TC.

  Am I missing something obvious, but how to use the root, when its been disabled, to create the script?

  Examine the web interface. You can download them here.

• WebLogic startup scripts

  Hi Experts,

  Can someone please send me any examples of startup scripts weblogic admin of the servers managed in unix environment?

  Thanks in advance,

  Srikanth

  Hello

  You could get a virtual image of pre-build scripts. Below is the link for future use.

  Pre-built developer VMs for Oracle VM VirtualBox | Oracle Technology Network

  in any case I find the content slot since the mentioned files. Create a copy of them.

  Beginning of startWebLogic.sh

  --------------------------------------------------------------------------------------------------------------------------

  #! / bin/sh

  # CAUTION: This file is created by the Configuration Wizard.

  # Any changes made to this script may be lost when adding extensions to this configuration.

  #---Fonctions start-

  stopAll()

  {

  # Separate us orders to stop in a function, so we are able to use the trap (a function call) UNIX command to stop these services

  If ["X$ {ALREADY_STOPPED}"! = "X"]; then

  output

  FI

  # STOP DERBY (only if we started this)

  If ["${DERBY_FLAG}" = "true"]; then

  echo "Server Derby to stop... »

  ${WL_HOME}/common/derby/bin/stopNetworkServer.sh > "${DOMAIN_HOME} / derbyShutdown.log" 2 > & 1

  echo "Derby server stopped."

  FI

  ALREADY_STOPPED = 'true '.

  }

  classCaching()

  {

  echo 'class caching enabled... '. »

  "" JAVA_OPTIONS = "${JAVA_OPTIONS} - Dlaunch.main.class = ${SERVER_CLASS} - Dlaunch.class.path =" ${CLASSPATH} ' - Dlaunch.complete = weblogic.store.internal.LockManagerImpl - cp ${WL_HOME}/server/lib/pcl2.jar.

  Export JAVA_OPTIONS

  SERVER_CLASS = "com. Oracle.ClassLoader.Launch.Launcher ".

  }

  #---Fonctions-

  # *************************************************************************

  # This script is used to start WebLogic Server for this domain.

  #

  # To create your own script start for your domain, you can initialize the

  environment # by calling @USERDOMAINHOME/setDomainEnv.

  #

  setDomainEnv # initialize or call commEnv to initialize the following variables:

  #

  # BEA_HOME - WebLogic of BEA installation directory.

  # JAVA_HOME - location of the version of Java used to start WebLogic

  # Server.

  # JAVA_VENDOR - provider of the JAVA virtual machine (e.g., BEA, HP, IBM, Sun, etc.)

  # PATH - JDK and WebLogic directories are added to the system path.

  # WEBLOGIC_CLASSPATH

  # - Classpath required to start WebLogic Server.

  # PATCH_CLASSPATH - Classpath used for patches

  # PATCH_LIBPATH - path of the library used for patches

  # PATCH_PATH - path used for patches

  # WEBLOGIC_EXTENSION_DIRS - dirs Extension for WebLogic classpath patch

  # JAVA_VM - java arg specifying the virtual machine to run.  (i.e.

  (# - server, - hotspot, etc..)

  # USER_MEM_ARGS - the variable to override the standard memory arguments

  # passed to java.

  # PRODUCTION_MODE - the variable that determines if Weblogic Server is started in production mode.

  # DERBY_HOME - Derby directory.

  # DERBY_CLASSPATH

  # - Classpath required to start at Derby.

  #

  # Other variables used in this text include:

  # Servername - name of the weblogic server.

  # JAVA_OPTIONS - Java command line options for the server. (These

  # will be marked at the end of the JAVA_VM and

  (# MEM_ARGS)

  # CLASS_CACHE - class Enable cached to the system classpath.

  #

  # For more information, see "Managing Server Startup and Shutdown for Oracle WebLogic Server"

  # (http://download.oracle.com/docs/cd/E23943_01/web.1111/e13708/overview.htm).

  # *************************************************************************

  umask 037

  # Call setDomainEnv here.

  DOMAIN_HOME = ' / oracle/middleware/app/oracle/admin/aservers/became/soa_domain_devint.

  . ${DOMAIN_HOME}/bin/setDomainEnv.sh $*.

  SAVE_JAVA_OPTIONS = "${JAVA_OPTIONS}"

  SAVE_CLASSPATH = "${CLASSPATH}.

  # Run Derby

  DERBY_DEBUG_LEVEL = '0 '.

  If ["${DERBY_FLAG}" = "true"]; then

  ${WL_HOME}/common/derby/bin/startNetworkServer.sh > "${DOMAIN_HOME} / derby.log" 2 > & 1

  FI

  JAVA_OPTIONS = "${SAVE_JAVA_OPTIONS}".

  SAVE_JAVA_OPTIONS =""

  CLASSPATH = "${SAVE_CLASSPATH}".

  SAVE_CLASSPATH =""

  Trap 'stopAll' 1 2 3 15

  If ["${PRODUCTION_MODE}" = "true"]; then

  WLS_DISPLAY_MODE = 'Production '.

  on the other

  WLS_DISPLAY_MODE = 'development '.

  FI

  If ["${WLS_USER}"! = ""]; then

  JAVA_OPTIONS = "${JAVA_OPTIONS} - Dweblogic.management.username = ${WLS_USER}" "

  FI

  If ["${WLS_PW}"! = ""]; then

  JAVA_OPTIONS = "${JAVA_OPTIONS} - Dweblogic.management.password = ${WLS_PW}" "

  FI

  If ["${MEDREC_WEBLOGIC_CLASSPATH}"! = ""]; then

  If ["${CLASSPATH}"! = ""]; then

  CLASSPATH = "${CLASSPATH} ${CLASSPATHSEP} ${MEDREC_WEBLOGIC_CLASSPATH}".

  on the other

  CLASSPATH = "${MEDREC_WEBLOGIC_CLASSPATH}".

  FI

  FI

  echo "."

  echo "."

  echo "memory of JAVA arguments: ${MEM_ARGS}.

  echo "."

  echo "start = WLS Mode ${WLS_DISPLAY_MODE}".

  echo "."

  echo "CLASSPATH = ${CLASSPATH}.

  echo "."

  echo "PATH = ${PATH}".

  echo "."

  echo "***************************************************"

  ECHO "* to start WebLogic Server, use a user name and."

  echo "* password assigned to a user to administrator level.»  "For."

  echo "* server administration, using the WebLogic Server."

  echo "* console http://hostname/ReportServer: port/console."

  echo "***************************************************"

  # THE CLASS CACHING

  If ["${CLASS_CACHE}" = "true"]; then

  classCaching

  FI

  # START WEBLOGIC

  ECHO ' from weblogic Java version:

  ${JAVA_HOME} / bin/java ${JAVA_VM} - version

  If ["${WLS_REDIRECT_LOG}" = ""]; then

  echo "Starting WLS with line:

  echo "${JAVA_HOME} / bin/java ${JAVA_VM} ${MEM_ARGS}-Dweblogic.Name=${SERVER_NAME}-Djava.security.policy=${WL_HOME}/server/lib/weblogic.policy {JAVA_OPTIONS} ${PROXY_SETTINGS} ${SERVER_CLASS}".

  ${JAVA_HOME} / bin/java ${JAVA_VM} ${MEM_ARGS}-Dweblogic.Name=${SERVER_NAME}-Djava.security.policy=${WL_HOME}/server/lib/weblogic.policy {JAVA_OPTIONS} ${PROXY_SETTINGS} ${SERVER_CLASS}

  on the other

  echo "output window WLS Redirection to ${WLS_REDIRECT_LOG}".

  nohup ${JAVA_HOME} / bin/java ${JAVA_VM} ${MEM_ARGS}-Dweblogic.Name=${SERVER_NAME}-Djava.security.policy=${WL_HOME}/server/lib/weblogic.policy {JAVA_OPTIONS} ${PROXY_SETTINGS} ${SERVER_CLASS} > "${WLS_REDIRECT_LOG}" 2 > & 1 &

  FI

  stopAll

  popd

  # Output this script only if we were told to get out.

  If ["${doExitFlag}" = "true"]; then

  output

  FI

  End of startWebLogic.sh

  Beginning of startManagedWebLogic.sh

  -------------------------------------------------------------------------------------------------------------------------

  #! / bin/sh

  # CAUTION: This file is created by the Configuration Wizard.

  # Any changes made to this script may be lost when adding extensions to this configuration.

  #---Fonctions start-

  usage()

  {

  echo "need to define SERVER_NAME and ADMIN_URL environment variables or specify.

  ECHO ' in the command line:

  echo "use: $ SERVER_NAME {ADMIN_URL} 1.

  ECHO "example:

  Echo "$1 managedserver1 http://localhost:7011".

  }

  #---Fonctions-

  # *************************************************************************

  # This script is used to start the WebLogic managed server for the domain in

  # current working directory.  This script can either read the servername and

  # ADMIN_URL as positional parameters or will read them of environment variables that are

  # set before calling this script. If SERVER_NAME is not sent as a parameter, or exist with a value

  # as a variable to the script environment will CLOSE. If the ADMIN_URL value cannot be determined

  # reading a parameter or the environment, a default value will be used.

  #

  # For more information, see "Managing Server Startup and Shutdown for Oracle WebLogic Server"

  # (http://download.oracle.com/docs/cd/E23943_01/web.1111/e13708/overview.htm)

  # *************************************************************************

  # The name of the server that you want to start the value servername.

  Domain_name = "soa_domain_devint."

  "ADMIN_URL ="http://localhost:7011"

  # Equal WLS_USER equal to your username system and WLS_PW

  # to your system password to no prompt for username and password

  # during the startup of the server.  Both are needed to work around the start

  Guest #.

  WLS_USER = "weblogic.

  export WLS_USER

  WLS_PW = "jdw1vs0a".

  export WLS_PW

  # Set JAVA_OPTIONS indicators you want to pass to the java virtual machine. that is to say:

  # set JAVA_OPTIONS = - Dweblogic.attribute = value - Djava.attribute = value

  "JAVA_OPTIONS="-Dweblogic.Security.SSL.trustedCAKeyStore="/Oracle/middleware/app/oracle/product/mwhomes/fmw11.1.1.6/wlserver_10.3/Server/lib/cacerts" ${JAVA_OPTIONS} "

  Export JAVA_OPTIONS

  # On the virtual machine java to run JAVA_VM. For example:

  # define JAVA_VM =-Server

  JAVA_VM =""

  # Set SERVER_NAME and ADMIN_URL, they must specified by before you start

  # a managed, server detailed information can be found at

  # http://download.oracle.com/docs/cd/E23943_01/web.1111/e13708/overview.htm

  if [ "$1" = "" ] ; then

  If ["${server_name}" = ""]; then

  use of $0

  output

  FI

  on the other

  SERVER_NAME = "$1."

  Maj

  FI

  if [ "$1" = "" ] ; then

  If ["${ADMIN_URL}" = ""]; then

  use of $0

  output

  FI

  on the other

  ADMIN_URL = "$1".

  Maj

  FI

  # Export the admin_url if the user has specified he OR she was sent on the command line

  ADMIN_URL = "${ADMIN_URL}".

  export ADMIN_URL

  SERVER_NAME = ' ${SERVER_NAME}.

  Export SERVER_NAME

  DOMAIN_HOME = ' / oracle/middleware/app/oracle/admin/aservers/became/soa_domain_devint.

  if [ "$1" = "" ] ; then

  # Call Weblogic Server with our default params because the user did not specify any other those

  ${DOMAIN_HOME}/bin/startWebLogic.sh /nodebug noderby noiterativedev notestconsole noLogErrorsToConsole

  on the other

  # Call Weblogic Server with the user sent instead of the default params

  ${DOMAIN_HOME}/bin/startWebLogic.sh $1 $ $ 2 $3 $4 $5 $6 $7 $8 $9

  FI

  End of startManagedWebLogic.sh

• Problem with InDesign startup script does not import XML images

  I'm doing an XML import automatically from a startup script when a document is loaded. I managed to get most of the content to fill, but the images are ignored. Everything works, including images, when I do a manual 'Import XML' through the user interface or a manual script.

  Here's my manual script:

  var myDocument = app.activeDocument;
  var xmlFile = File('/c/Full/Path/To/data.xml');
  
  myDocument.importXML(xmlFile);

  But the goal is to do at startup. Here's my startup script:

  #targetengine "session"
  
  app.addEventListener('afterOpen', function(myEvent) {
     if (myEvent.target.constructor.name !== 'Document') {
     return;
     }
  
     var myDocument = myEvent.target;
     var xmlFile = File('/c/Full/Path/To/data.xml');
  
    myDocument.importXML(xmlFile);
  });

  Here is the XML tag for the image:

  <Image href="file:///C:/Full/Path/To/Image/02.png" />

  I wonder there is a problem with the 'afterOpen' event reminder, and it is the reason why it works manually using the same method, but not in the startup script.

  I solved it by avoiding the event quite listener:

  main();
  
  function main () {
  
      // create a path for a file object
      var curFile = File('/c/Path/To/file.indd);
      var xmlFile = File('/c/Path/To/data.xml');
  
      // close app if files don't exist
      if (!curFile.exists || !xmlFile.exists) {
          app.quit(SaveOptions.NO);
      }
  
      // open the file
      var curDoc = app.open(curFile);
  
      // import the xml
      curDoc.importXML(xmlFile);
  
      // create a new file object
      var pdfFile = new File(curFile.parent + '/' + curFile.name + '.pdf');
  
      // export to pdf
      curDoc.exportFile(ExportFormat.PDF_TYPE, pdfFile);
  
      // close app
      app.quit(SaveOptions.NO);
  
  }
  

• jsbin file is not working in the startup scripts folder

  Hello

  I use ID CC 2015.3 in Windows 7. I placed a jsxbin in the startup scripts folder, but it is not for me. Please notify.

  Have you seen this?

  Indiscripts: JavaScript binary ramming (CS4/CS5)

• How to startup script that matches the opening spread

  Hello

  Fact someone knows how to do a startup script for InD CS6 reflecting the spread too screen when the document open?

  I tried this and it works but I get a dialog stating "the object is not valid:

  #targetengine "session".

  main();

  main() {} function

  myEventListener = app.eventListeners.add ("afterOpen", excuteScript) var;

  }

  function excuteScript() {}

  myD var = app.documents [0];

  app.layoutWindows [0] return (ZoomOptions.FIT_SPREAD);

  }

  Hello

  I mean:

  //...

  function excuteScript (ev) {}

  myD var = app.documents [0];

  If (ev.target.constructor.name! = 'Document')

  myD.layoutWindows [0] return (ZoomOptions.FIT_SPREAD);

  }

  Jarek

• How to run the application startup script before the start of telnet (inetd)

  Hello
  
  I need to run my application startup script before the beginning of Telnet users on the server. At the present time, the script is at /etc/rc2.d/S98startup which is not useful.
  
  Thanks in advance...
  
  Published by: user4027740 on April 7, 2012 12:41

  I am inclined to ask 'why', but I refrain...

  The problem you'll have is that 'telnet' (really inetd) will be started by SMF and your app startup is a legacy script. I don't know of anyway to you allows to map addictive SMF one departure inherited. The only solution is to write a start of SMF for your application and do inetd:default require your application to be online before you start.

• PAM.d/system-auth in a startup script?

  I'm trying to configure my startup scripts so that at the end of the script my servers are configured to conform to the best practices of VMware security.  Everything seems to work except by editing the etc/pam.d/system-auth file.  For some reason when the script runs, it removes all references to the etc/pam.d/system-auth file $ISA.

  My startup script includes as follows:

  MV/root/ORIG_FILES/system-auth /etc/pam.d/system-auth. ORIG

  Cat & gt; /etc/pam.d/system-auth & lt; & lt; AUTHENTICATION SYSTEM

  #%PAM-1.0

  # Autogenerated by esxcfg-auth

  /lib/security/$ISA/pam_unix.so account required

  account required /lib/security/$ISA/pam_tally.so deny = 3 no_magic_root

  AUTH required /lib/security/$ISA/pam_tally.so no_magic_root

  AUTH required /lib/security/$ISA/pam_env.so

  AUTH sufficient /lib/security/$ISA/pam_unix.so likeauth nullok

  AUTH required /lib/security/$ISA/pam_deny.so

  attempts at password required /lib/security/$ISA/pam_cracklib.so = 3

  shadow md5 password sufficient /lib/security/$ISA/pam_unix.so nullok use_authtok

  /lib/security/$ISA/pam_deny.so password required

  session required /lib/security/$ISA/pam_limits.so

  session required /lib/security/$ISA/pam_unix.so

  AUTHENTICATION SYSTEM

  But the end result is a file /etc/pam.d/system-auth that looks like:

  #%PAM-1.0

  # Autogenerated by esxcfg-auth

  /lib/security//pam_unix.so account required

  AUTH required /lib/security//pam_env.so

  AUTH sufficient /lib/security//pam_unix.so likeauth nullok

  AUTH required /lib/security//pam_deny.so

  attempts at password required /lib/security//pam_cracklib.so = 3

  shadow md5 password sufficient /lib/security//pam_unix.so nullok use_authtok

  /lib/security//pam_deny.so password required

  session required /lib/security//pam_limits.so

  session required /lib/security//pam_unix.so

  Notice how the $ISA is taken for each line?  Does anyone know how to prevent this?

  ________________________________

  Jason D. Langdon

  Hello

  $ISA is not necessary as the is/lib/security directory

  If everything works out with it if you wish. If it is a standard, you need to meet, instead of using 'cat' echo each line using single quotes around each line. i.e.

  echo "auth... ' > filename '.

  apostrophes, said shell, do not read.

  Best regards
  Edward L. Haletky
  VMware communities user moderator, VMware vExpert 2009
  ====
  Author of the book ' VMWare ESX Server in the enterprise: planning and securing virtualization servers, Copyright 2008 Pearson Education.
  Blue gears and SearchVMware Pro items - top of page links of security virtualization - Security Virtualization Round Table Podcast

• For various managed server startup script

  I have a WebLogic 10.3.4 including webcenter suite which also includes the University Complutense of MADRID. It means that I have 7 managed servers.
  Is there a way to create a startup script so that when I start the administration server, some of the managed servers will be also launched?
  
  When I set up the field, I have not set up or install the Manager of nodes. Is it possible without the node Manager, or do I have to install/configure it?

  A startscript example can be found here: http://middlewaremagic.com/weblogic/?p=6040 look in the section: from the SOA environment

  It shows an example of how to do to start an SOA environment. Note that the example start up a cluster, to launch a single server, you can
  Use start('ServerName','Server') instead of start('ClusterName','Cluster') .

  You don't need to install a nodemanager; the procedure to configure a nodemanager is present in the mentioned example section.

• Launched AFTER the script that launches InDesign startup scripts

  Hi all

  I m using a script that, in some cases - when the application is closed-, launch InDesign.

  The problem is that this script uses a variable set in startup, but it s undefined scripts.

  I tried to test (variable == undefined), to protect the script logic, but they almost always have an accident with an "undefined" error (?).

  It seems to be a timing problem between the two scripts that run at the same time.

  You have an idea on how to solve this problem?

  Is it possible to give absolute preference to startup scripts?

  Why does not no comparison undefined?

  Concerning

  If (typeof variable == "undefined") {}

  No variable...

  }

• Linux startup scripts

  Installing linux OBIEE doesn't seem to come with startup scripts (to ensure that service starts correctly on the system startup). It doesn't have any startup scripts of adaptable, but even these need to be wrapped so that they start as user 'oracle', background OC4J correctly, etc.. I'm a sysadmin for help, and he is well on his way to work, but it just seems absurd that, with this complex an Oracle environment, doesn't give us at least a model for starting.
  
  Someone at - it good scripts, tested to share?
  
  What Miss me?

  Tom, I'm afraid that you do not miss anything. Indeed there is no main script to start all the OBIEE services or it is not all the scripts to the server initialization sequence. We created both. The OBIEE start script is a bit too personal to post here, but in a Word, she calls all the OBIEE scripts relevant in the correct order. To OBIEE server initialization sequence, we have added a few scripts in /etc/init.d/ which makes it look like this:

  #! / bin/bash
  / bin/su - your_obiee_user-c ' full_path_to_your_start/stop_obiee_script '.

  Your system administrator must be able to drive there from there. It will be useful.